Permutation-padlock.



J. B. RAFF.

PERWUTATiON PADLOCK.

APPLICATION FILED DEC. 1. 1915.

WETNESSES ATTORNEY UNTTED @ATg PATENT @FFTQE.

JOHN B. RAFF, F LOS LUNAS, NEW MEXICO, ASSIGNOR 0F ONE-FOURTH. T0 RAMON B. CHAVEZ, OF TOME, NEW MEXICO.

PERMU'I'ATION-PADLOCK.

Application filed December 1, 1915.

To all whom it may concern:

Be it known that 1, JOHN B. Barr, citizen of the United States, residing at Los Lunas, in the county of Valencia and State of New Mexico, have invented certain new and useful Improvements in a Permutation-Path lock, of which the following is a specification.

My invention relates to permutation padlocks and as its primary object contemplates an improved construction, combination and arrangement of parts to be hereinafter more particularly described and specifically pointed out in the claim.

In describing my invention in detail reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is an elevation of my improved permutation padlock;

Fig. 2 is a longitudinal sectional view illustrating the interior mechanism (the shackle being locked) Fig. 3 is a similar view (the shackle having been unlocked) Fig. 4c is a section on the line 44 of Fig. 1;

Fig. 5 is a detail elevation of one of the lock case sections; and

Fig. 6 is a detail sectional view illustrating the manner in which the locking disks are mounted.

Referring now to the drawings by numerals, 1 designates as an entirety the lock case,

the same, in its preferred embodiment, comprising complemental lock case sections designated respectively 2 and 8. Lock case section 2 is recessed as indicated at d to provide an operating space for a plurality of locking tumblers or disks (preferably three) designated respectively 5, 6 and 7. Disk 5 is mounted at one end of a pin 8, the disk 6 at one end of a sleeve and the disk 7 at one end of a sleeve 9, the latter, the sleeve 9 embracing the sleeve 10 and the sleeve 10 embracing the pin 8, this arrangement, as illustrated to advantage in Fig. 6, permitting each of the mentioned disks 5, 6 and 7 to be independently rotated and the combination of the lock thus determined. Pin 8 at its opposite end is equipped with a knob 11, sleeve 10 with a graduated gnarled dial plate 12 and sleeve 9 with a graduated gnarled comparatively large dial plate 13, the for- Specification of Letters Patent.

Patented May 29., 1917.

Serial No. 64,560.

mer, knob 11 being suitably gnarled and graduated whereby to provide for a proper operation of the lock.

Each of the mentioned disks or tumblers 5, 6 and 7 is cut away as indicated at 14, the notches thus formed when alined, and in registry with opposed pockets 15 and 16 formed in the lock case sections 2 and 3 permitting movement off a spherical locking element 17 from one to the other of the said lock case sections as desired. The pocket 16 of the lock case section 2 is comparatively shallow whereby to dispose the spherical locking element 17 in engagement with an enlargement 18 of the shackle 19 when located in said pocket.

The shackle 19 is distorted as indicated at 20 to permit movement of the look case under any and all circumstances, since free movement of the lock case with respect to its support (not shown) is essential to movement of the ball 17 from one to the other of the pockets hereinbefore described. Shackle 19, as above noted, is enlarged as indicated at 18 and distorted as indicated at 20. Said shackle, as illustrated to advantage in Figs. 2 and 3 is of a substantially inverted U- shaped formation, one of the extensions thereof (that extension equipped with the enlargement 18) being comparatively long and mounted to operate in a longitudinal bore 21 therefor formed in the lockcase 1. The bore 21 as indicated in the drawings is enlarged as at 22 and open to the recess 4: within which the tumblers or looking disks 5, 6 and 7 operate. The enlargement 18 is adapted to operate in the enlarged portion 22 of said bore. The comparatively short extension of the shackle 19 is adapted to operate in a longitudinal bore 23 formed in the lock case, the bore 23 being of a uniform size throughout. A channel 24 is open to the shallow pocket 16 of the lock case section 3 that the enlargement 18 may be turned freely in an unlocking operation.

The operation of the lock is as follows; to wit: Assuming that the shackle is in the position illustrated in Fig. 2 and the notches 14; of the several locking disks are out of alinement, it is but necessary that the gnarled dial plates 12 and 13 and the lgnarled knob 11 be set to a particular combination, the devices when set alining the notches 14: with the pockets 15 and 16 in the lock case. Before thus alining the notches with the pockets 15 and 16 the spherical member 17 acts as a lock for the shackle 19, said member, by reason of the shallowness of the pocket 16, engaging with the enlargement 18 of the shackle and by such engagement preventing movement of the shackle from the position illustrated in Fig. 2 to the position illustrated in Fig. 3. Iihe notches 14 having been alined as suggested, the en tire lock case is then turned completely upside down or suitiiciently turned to cause the locking element or member 1? to gravitate from a position within the pocket '16 to a position within the pocket 15, the latter be ing of suiiicient depth to receive the member removing it thereby from the path of the enlargement 18 on the shackle. Locking member 17 having thus been removed, the shackle 19 may be withdrawn suiiiciently to remove the comparatively short extension of the shackle from a position in engagement with the lock case 1. When so moved, the shackle may be turned, the enlargement 18 operating in the channel 24, in which event the structure heretofore locked is unlocked.

The sections of the lock case may be fastened together by any suitable means.

From the foregoing, taken in connection with the accompanying drawings it will be noted it is not only essential that the combination be known but it is essential that the lock case be inverted before the shackle can be withdrawn; that the ball 17, by reason of the depth of pocket 15, may be locked therein to prevent, if desired, a relocking of the look, if desired; and that by constructing the shackle as hereinbefore pointed out, movement of the lock in the manner required may be obtained regardless of the na ture of the support.

In reduction to practice, I have found that the form of my invention, illustrated in the drawings and referred to in the above description, as the preferred embodiment, is the most eliicient and practical; yet realizing that the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts maybe resorted to, when required, without sacrificing any of the advantages of my invention, as defined in the appended claim.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

A permutation lock including a lock case having opposed pockets of different depths, a spherical locking member movable from one pocket to the other, a movable shackle engageable by the locking element, when said element is in the shallower pocket to retain the shackle in locked position, and permutation means for retaining the locking element in said pocket, said means when properly actuated, permitting movement of the locking element, into the deeper pocket 'whereby to permit movement of the shackle to unlocked position.

In testimony whereof I atiiX my signature in presence of two witnesses.

JOHN B. RAFF. Witnesses G. W. CANBLE, Louis B. HUNING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

